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CH-926 and I-PAC 4

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the_gamer:
Hi folks, I have the CH-926 coin acceptor http://www.ebay.com/itm/Multi-Coin-Acceptor-Selector-Mechanism-Vending-machine-/250593770728?_trksid=p5197.m1992&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D14%26meid%3D1483368190677724805%26pid%3D100015%26prg%3D1006%26rk%3D1%26 and the I-Pac 4 http://www.ultimarc.com/ipac1.html

My question is how to wire them to get them to work. I have four of those coin connectors can I wire them all to one 12-V output from the pc power supply? I have to wire the yellow 12V from the PC and the black ground from the pc to the 12V and ground from the coin acceptor. But does it suffice to connect the coin output from the ch-926 to the coin input of the ipac or does the ipac need anything on it's ground to get the correct signal? Do I have to connect a transistor or is the current right? What else do I need to consider? I hope you guys in here can help me to get it to work.

Thanks a lot for reading!

the_gamer:
Am I the first one to try this? Nobody uses a coin acceptor?

dgame:
I used them on a build before, nice mechs. You have to use a 5 volt Zener diode between ground and coin signal or you could fry the I-PAC.

I used: http://www.radioshack.com/product/index.jsp?productId=2049726

See: Coin Mech Connections and setup : http://www.ultimarc.com/controldiags.html

the_gamer:
Thanks a lot! This really helps me but I still have three questions left. The text says the ground connects to the ground on the I-PAC. So the ground from the disk connector is not used/connected? What setting for the pulse length is best for the I-PAC? Slow, Medium or fast?
Can I only connect one of those Coin Acceptors to a PC Disk Drive connector or can I connect multiple to one?

Edit: I just saw that in the picture you posted, it looks like the diode is connected in in a pallel circuit. That way the volt will stay the same. Is that right? Or does it have to be connected in series and the picture looks odd there?

AndyWarne:
It would be best to also connect the ground from the disk connector.
Any pulse length should work.
The zener is connected as shown to prevent the voltage on the coin output wire from rising above 5 volts. In fact its unlikely it would but this is just in case. This is not needed if used with a J-PAC.

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